14221000 has 32 divisors (see below), whose sum is σ = 33279480. Its totient is φ = 5688000.

The previous prime is 14220977. The next prime is 14221021. The reversal of 14221000 is 12241.

It can be written as a sum of positive squares in 4 ways, for example, as 5447556 + 8773444 = 2334^2 + 2962^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6111 + ... + 8110.

Almost surely, 2^14221000 is an apocalyptic number.

14221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14221000 is an abundant number, since it is smaller than the sum of its proper divisors (19058480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14221000 is a wasteful number, since it uses less digits than its factorization.

14221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14242 (or 14228 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 14221000 is about 3771.0741175426. The cubic root of 14221000 is about 242.2758051210.

Adding to 14221000 its reverse (12241), we get a palindrome (14233241).

The spelling of 14221000 in words is "fourteen million, two hundred twenty-one thousand".